Flora of North America species comparison

erect to spreading, reddish tan, becoming darker, branched, short-stipitate-glandular, usually resinous.

erect, green when young, becoming tan, branched, glabrous, resinous.

ascending to spreading;

blades elliptic to narrowly oblanceolate (flat or somewhat concave adaxially), 10–35 × 2–5 mm, midnerves evident (often with 1–2 fainter, collateral veins), apices acute, apiculate, faces short-stipitate-glandular, usually gland-dotted;

axillary fascicles absent.

ascending;

blades oblanceolate, 7–30 × 1.5–3 mm, midnerves evident, apices acute to apiculate, faces glabrous, resinous;

axillary leaf fascicles usually present, much shorter than subtending leaves.

1–10 mm (bracts 1–5, resembling phyllaries, stipitate-glandular).

1–12 mm (bracts 0–3, scalelike).

obconic, 5.5–7.5 × 2.5–4 mm.

obconic, 12–15 × 4–8 mm.

1–8;

laminae elliptic, 3–4 × 0.8–1.3 mm.

5–8;

laminae 3–4 × 0.7–2 mm.

5–15;

corollas 5–7 mm.

8–12;

corollas 9–10.5 mm.

30–40 in 4–5 series, tan, lanceolate to elliptic, 2–7 × 0.5–1.2 mm, strongly unequal, mostly chartaceous (bodies abruptly constricted at bases of appendages), midnerves faint, (margins membranous, sparsely ciliate apically), apices (usually recurved) usually acute to cuspidate, sometimes long-acuminate, abaxial faces glabrate, often gland-dotted.

18–28 in 3–4 series, tan, ovate or lanceolate to elliptic, 8–12 × 1–2.5 mm, subequal, outer herbaceous-tipped, inner mostly chartaceous, apices erect, acute or acuminate to cuspidate, abaxial faces glabrous, resinous.

in cymiform arrays (to 4 cm wide).

(3–8) in cymiform arrays.

usually tan, sometimes reddish, narrowly obconic, 4–5.5 mm, glabrous or densely sericeous;

pappi whitish tan, 4–5.5 mm.

tan to reddish, ellipsoid, ca. 5 mm, densely hairy;

pappi off-white to brown, 7.5–9 mm.